Ceratoteleas cornus, Komeda, Yoto, Mita, Toshiharu & Yamagishi, Kenzo, 2016

Komeda, Yoto, Mita, Toshiharu & Yamagishi, Kenzo, 2016, A new species of Ceratoteleas Kozlov (Hymenoptera, Scelionidae) from Japan, with a description of the male of Ceratoteleas, ZooKeys 609, pp. 1-9 : 2-7

Taxon classification Animalia Hymenoptera Scelionidae

Ceratoteleas cornus sp. n.

Description.

Female (n = 5): Length = 2.00-2.50 mm (m = 2.28, SD = 0.20).

Color (Figs 1A, C). Body dark brown; interantennal process, A1-2, meso- and metapleura (Fig. 1C) brown; radicle, mandible and legs yellow.

Head. FCI = 1.27-1.38 (m = 1.33, SD = 0.04); LCI = 1.55-1.78 (m = 1.61, SD = 0.10); DCI = 2.09-2.30 (m = 2.14, SD = 0.09); HW/IOS = 1.50-1.68 (m = 1.62, SD = 0.07); head about 1.2 times as wide as mesosoma (HW/TSL = 1.17-1.24, m = 1.21, SD = 0.03). Frons (Fig. 2A) dorsoventrally costate with dense long setae; orbital band absent; frontal patch absent; central keel present dorsally; antennal scrobe smooth, without setae; torular triangle smooth; POL as long as OOL (POL/OOL = 0.89-1.00, m = 1.00, SD = 0.06); OOL about 2 times as long as LOL (OOL/LOL = 1.80-2.25, m = 2.00, SD = 0.18); interantennal process (Fig. 1C) angular, forming right angle ventrally. Vertex costate with dense long setae; interocellar space rugose; hyperoccipital carina absent; vertex patch absent; Eyes with sparse setae. Malar region costate with dense setae; facial striae extending to top of eye; orbital carina present. Gena areolate with dense setae; genal patch absent. A1 (Fig. 2B) about 8 times as long as radicle (A1/r = 7.75-8.75, m = 8.25, SD = 0.45), 1.4 times as long as clava (A1/cl = 1.35-1.38, m = 1.35, SD = 0.01), about 16 times as long as A6 (A1/A6 = 15.50-17.50, m = 16.50, SD = 0.89); A2 3.5 times as long as A6 (A2/A6 = 3.50); A3 longest among A2-6, about 4.5 times as long as A6 (A3/A6 = 4.50-5.00, m = 4.50, SD = 0.27); A4 about 3.5 times as long as A6 (A4/A6 = 3.50-4.00, m = 3.50, SD = 0.27); A5 as long as A6 (A5/A6 = 1.00). Mandible tridentate; median tooth small, posterior tooth largest.

Mesosoma. Pronotal suprahumeral sulcus foveolate with long setae; epomial carina present; cervical pronotal area areolate with dense setae, sculpture finer laterally; lateral pronotal area smooth dorsally, weakly rugulose ventrally. Mesoscutum (Fig. 2C) about 1.4 times as wide as long (TSL/ML = 1.37-1.52, m = 1.43, SD= 0.06), areolate with dense long setae; mesoscutal suprahumeral sulcus finely sulcate; mesoscutal humeral sulcus finely sulcate; antero-admedian line absent; notaulus absent. Mesoscutellum (SW/SL = 2.20-2.64, m = 2.55, SD= 0.18), areolate with dense long setae; scutoscutellar sulcus present; axillular carina extending posteriorly as a spine; median mesoscutellum without spine; posterior scutellar sulcus present. Femoral depression (Fig. 2D) transversally costate–areolate; mesopleural carina present; postacetabular sulcus present; postacetabulum areolate with dense setae; postacetabular patch absent; sternaulus absent; mesepimeral sulcus weakly foveolate; speculum smooth dorsally, costate ventrally; prespecular sulcus absent. Metanotal trough foveolate; metascutellum areolate, with bidentate spines; metascutellar carina present. Metapleural sulcus deeply impressed; dorsal metapleural area areolate; ventral metapleural area smooth dorsally, areolate laterally and ventrally; paracoxal sulcus absent; metapleural epicoxal sulcus absent; metapleural epicoxal carina absent; metapleural triangle areolate; prespiracular propodeal area modified to tooth; lateral propodeal carina present; lateral propodeal area areolate–rugose; metasomal depression foveolate; plica poorly defined; posterior propodeal projection present; plical area areolate–rugose, with dense setae. Legs (Fig. 1C) robust. Protibia with dense setae; anterior part of protibia with dense spines. Mesotibia with dense setae; anterior part of mesotibia with dense spines. Metafemur swollen; metatibia with dense setae; anteroapical part of metatibia with dense spines. Fore wing (Fig. 1A) extending to apical metasoma, about as wide as mesoscutum (TSL/WW = 1.02-1.30, m = 1.18, SD = 0.10); marginal vein about 2.3 times as long as stigmal vein (m/st = 2.17-2.67, m = 2.33, SD = 0.19). Hind wing extending to posterior margin of metasoma, about 5.5 times as wide as length of marginal cilia at widest point (HWW/HWS = 5.40-6.25, m = 5.50, SD = 0.34).

Metasoma. T1 about 0.7 times as wide as T1+T2 length (T1W/T1+T2L = 0.71-0.81, m = 0.74, SD = 0.04), areolate, convex anterodorsally, as short horn. T2 areolate; basal depressions on T2 unclear; lateral patch of T2 present, with dense setae. T3 (Fig. 2E) about 1.4 times as wide as long (T3W/T3L = 1.41-1.49, m = 1.45, SD = 0.03), about 1.3 times as wide as mesoscutum (T3W/TSL = 1.18-1.29, m = 1.28, SD = 0.04), areolate, with dense setae laterally, smooth medially; basal depressions on T3 absent; lateral patch of T3 absent; posterodorsal patch of T3 absent; apical setae on T3 absent. S3 (Fig. 2F) deeply punctate with dense setae; basal depressions on S3 absent. T4 areolate with dense long setae; median patch on T4 absent; lateral patch of T4 absent. T5 areolate with dense long setae; lateral patch of T5 absent. T6 puncutulate with dense long setae; lateral patch of T6 absent.

Male (n = 5): Length = 1.88-2.25 mm (m = 2.13, SD = 0.15)

Color (Fig. 1B, D) similar to female, but lighter.

Head. FCI = 1.37-1.47 (m = 1.43, SD = 0.04); LCI = 1.40-1.67 (m = 1.50, SD = 0.10); DCI = 2.00 - 2.29 (m = 2.15, SD = 0.10); HW/IOS = 1.43-1.47 (m = 1.45, SD = 0.02); head about 1.3 times as wide as mesosoma; (HW/TSL = 1.20-1.30, m = 1.25, SD = 0.04). Antennal scrobe (Fig. 3A) absent; POL shorter than OOL (POL/OOL = 0.67-0.75, m = 0.69, SD = 0.03); OOL about 4 times as long as LOL (OOL/LOL = 3.25-4.00, m =4.00, SD = 0.41); interantennal process (Fig. 1D) circular, forming right angle ventrally. Vertex costate–smooth, with dense setae. Clypeus smooth. Gena areolate -costate with dense setae; genal patch absent. A1 about 5.3 times as long as radicle (A1/r = 5.00-5.50, m = 5.25, SD = 0.25); A5 (Fig. 3B) about 6.7 times as long as wide (A5L/A5W = 6.33-7.33, m = 6.67, SD = 0.38), 3.8 times as long as tyloid (A5L/ty = 3.50-4.00, m = 3.80, SD = 0.22).

Mesosoma. Cervical pronotal area areolate with dense setae; lateral pronotal area smooth dorsally, areolate ventrally. Mesoscutum (Fig. 3C) about 1.3 times as wide as long (TSL/ML = 1.32-1.43, m = 1.33, SD= 0.04), with sparse setae; notaulus weakly present; inter notaular area areolate with sparse setae; lateral notaular area smooth–sparsely punctate. Mesoscutellum about 2.3 times as wide as long (SW/SL = 2.14-2.38, m = 2.25, SD= 0.10), areolate with dense setae laterally, smooth dorsally; scutoscutellar sulcus foveolate–sulcate; posterior mesoscutellar sulcus foveolate. Metascutellum shorter than female, with weak bump medially. Metanotal trough (Fig. 3D) foveolate–sulcate. Metasomal depression rugose. Legs (Fig. 1D) slightly robust. Setae and spines of tibiae shorter than female. Fore wing (Fig. 1D) long, exceeding to apical mesosoma, wider than mesoscutellum (TSL/WW = 0.67-0.69, m = 0.69, SD = 0.01); marginal vein about 2.8 times as long as stigmal vein (m/st = 2.44-3.00, m = 2.78, SD = 0.27). Hind wing long, exceeding to apical mesosoma, about 6 times as wide as length of marginal cilia at widest point (HWW/HWS = 5.60-6.50, m = 6.00, SD = 0.32).

Metasoma. T1 about 0.4 times as wide as T1+T2 length (T1W/T1+T2L = 0.38-0.54, m = 0.41, SD = 0.06), longitudinally costate–areolate. T2 costate; basal depressions on T2 unclear. T3 (Fig. 3E) about 1.5 times as wide as long (T3W/T3L = 1.41-1.59, m = 1.50, SD = 0.07), about 1.2 times as wide as mesoscutum (T3W/TSL = 1.13-1.23, m = 1.20, SD = 0.04), costate–finely areolate, with sparsely deeply punctate sculpture and setae; lateral patch of T3 present, with dense setae. S3 (Fig. 3F) sparsely deeply punctate with dense setae. T4 costate–finely areolate, with sparsely deeply punctate sculpture and setae; lateral patch of T4 present, with dense setae. T5 areolate, with sparsely deeply punctate sculpture and setae; lateral patch of T5 absent. T6 punculate with dense long setae; lateral patch of T6 absent.

Material examined

(See also Suppl. material 2: Specimens data in DarwinCore format.). Holotype female: Fukuoka Pref.: Fukuoka city, Mt. Tachibana-yama (prim. evergr. for.), 20. V. - 9. VI. 1979, K. Yamagishi leg. (YPT). Paratypes: Hiroshima Pref.: Hatsukaichi city, Yoshiwa vill., Kanmuri Highlands (weed lands), 21. VI. 2015, Y. Komeda leg., 2♂ (YPT); Fukuoka Pref.: Fukuoka city, Mt. Tachibana-yama (Pond), 11. IX. 1993, H. Honda leg., 2♂ (YPT); 18. IX. 1993, 1♂1♀ (YPT); 7. V. 1994, 1♀ (YPT); 12. VI. 1994, 1♂ (YPT); 18. VI. 1994, 7♂3♀ (YPT); 25. VI. 1994, 1♂ (YPT); 2. VII. 1994, 6♂ (YPT); Soeda town, Mt. Hiko-san, 13. V. 1955, T. Esaki, K. Yasumatsu & Y. Hirashima leg. 1♂ (with white determination label; " Trisacantha Det. L. Masner, 1974"); 14. VI. 1969, K. Kanmiya leg. 1♂; 31. V. 1971, K. Takeno leg., 1♂; 26. VI - 4. VII. 2008, T. Mita & S. Sato leg., 1♀ (MT); 2-9, VII, 2008, T. Mita & S. Sato leg., 1♀ (MT); Ôita Pref., Kokonoe town, Tano, Chôjabaru, 5-7, V, 2016, T. Mita leg., 11♂ (YPT).

Distribution.

Japan (Honshu: Hiroshima; Kyushu: Fukuoka, Ôita).

Etymology.

The species name refers to a horn of T1.